On Sun, Aug 11, 2013  Russell Standish <li...@hpcoders.com.au> wrote:

> All evolutionary processes have variation, selection and heredity.


> What is missing from cultural evolution is an equivalent of the central
> dogma.

How on earth do you figure that? Ideas can be passed from one person to
another. Sometimes a person modifies the idea before passing it on to
somebody else. Some ideas are good at infecting minds and thus get selected
to play a major role in culture, and other ideas are not so good at
infecting minds and thus become extinct after just a few transmissions and
play no role in future culture.

> Not all evolutionary processes have the central dogma - and even in
> biological evolution, epigenetic changes
> violate the central dogma.

How on earth do you figure that? There is certainly variation in epigenetic
changes. If epigenetic changes can not be inherited then they are rather
dull and play no part in evolution. If they can be inherited then in some
animals those changes will work better than others in getting the animals
genes and methylation levels and whatever other heredity factors there are
into the next generation. And Darwin said that's all you need to get
Evolution going; he knew nothing about DNA much less epigenetic changes but
that doesn't matter because Darwin's logic still holds true whatever the
heredity factors are.

  John K Clark

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